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Elastomeric (acrylic) roof coating (dry film)

Its weight

The table
24 lb a squareThe sources give 12 to 24 lb.
Loose volume
Not known: it counts in the tons aloneA coating leaves no loose debris but its empty pails; no volume applies.
How it was chosen
The cured film added: PolyBrite 23 goes on at 1.5 gallons a square a coat, weighs 12 lb a gallon at 66% solids by weight, so one coat leaves 12 lb and the usual two coats 24 lb.

Your figure

None: estimates use the table's.

Give your own figure
For each square of roof, or each sheet of decking.
Loose, as it lands in the dumpster, for each square or each sheet.
Your scale tickets, your hauler's figures: what a reader would check it against.

1 source

  1. PolyBrite 23 Elastomeric Base Coating, Product Data Sheet (08/23)

    Polyglass U.S.A. · manufacturer spec sheet · read 2026-10-23

    "Weight Per Gal 12 ± 0.5" "Solids Weight (%) 66 ± 2" "Solids Volume (%) 55 ± 2" "Apply PolyBrite 23 at 24 wet mils (1.5 gallon per 100 square feet) per coat."

    The document An archived copy